During the reign of King Fejsal ibn Abdul-Aziz, between 1964 and 1975, Saudi Arabia underwent significant changes in the field of coinage. The silver riyal was the dominant coin, but in 1965 the paper riyal was also introduced. The new banknotes were issued by the Saudi Arabian Monetary Agency and were available in denominations of 1, 5, 10, 50 and 100 riyals. In 1972, Saudi Arabia introduced the decimal system. currency and the riyal was divided into 100 halals. New coins were issued in denominations of 1, 5, 10, 25 and 50 halala, as well as new banknotes in denominations of 1, 5, 10, 50 and 100 riyals. Coins and banknotes minted during the reign of King Faisal reflect an important period in the history of Saudi Arabia. This was a time when the country experienced significant economic growth and development, and the changes in the coinage reflect this.